Speaker enclosure



FIG. 1 is a bottom plan view of a speaker enclosure, showing my new design;

FIG. 2 is a front view of the speaker enclosure;

FIG. 3 is a perspective view of the front and of one side of the speaker enclosure; and

FIG. 4 is a perspective view of the rear and of the other side of the speaker enclosure. 

The ornamental design for a speaker enclosure as shown. 